GHSA-6xxr-648m-gch6
XWiki Platform vulnerable to cross-site request forgery (CSRF) via the REST API
Quick fix
GHSA-6xxr-648m-gch6 — org.xwiki.platform:xwiki-platform-rest-server: upgrade to the fixed version with the command below.
# pom.xml: bump <version>14.10.8</version> for org.xwiki.platform:xwiki-platform-rest-serverDetails
### Impact
The REST API allows executing all actions via POST requests and accepts `text/plain`, `multipart/form-data` or `application/www-form-urlencoded` as content types which can be sent via regular HTML forms, thus allowing cross-site request forgery. With the interaction of a user with programming rights, this allows remote code execution through script macros and thus impacts the integrity, availability and confidentiality of the whole XWiki installation.
For regular cookie-based authentication, the vulnerability is mitigated by SameSite cookie restrictions but as of March 2023, these are not enabled by default in Firefox and Safari.
### Patches The vulnerability has been patched in XWiki 14.10.8 and 15.2 by requiring a CSRF token header for certain request types that are susceptible to CSRF attacks.
### Workarounds
It is possible to check for the `Origin` header in a reverse proxy to protect the REST endpoint from CSRF attacks, see [the Jira issue](https://jira.xwiki.org/browse/XWIKI-20135) for an example configuration.
### References
* https://jira.xwiki.org/browse/XWIKI-20135 * https://github.com/xwiki/xwiki-platform/commit/4c175405faa0e62437df397811c7526dfc0fbae7
Are you affected?
Enter the version of the package you're using.
Affected packages
1.8Fixed in: 14.10.8# pom.xml: bump <version>14.10.8</version> for org.xwiki.platform:xwiki-platform-rest-server1.8Fixed in: 14.10.8# pom.xml: bump <version>14.10.8</version> for com.xpn.xwiki.platform:xwiki-core-rest-server1.8Fixed in: 14.10.8# pom.xml: bump <version>14.10.8</version> for com.xpn.xwiki.platform:xwiki-rest15.0-rc-1Fixed in: 15.2# pom.xml: bump <version>15.2</version> for org.xwiki.platform:xwiki-platform-rest-serverReferences
- https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-6xxr-648m-gch6[WEB]
- https://nvd.nist.gov/vuln/detail/CVE-2023-37277[ADVISORY]
- https://github.com/xwiki/xwiki-platform/commit/4c175405faa0e62437df397811c7526dfc0fbae7[WEB]
- https://github.com/xwiki/xwiki-platform[PACKAGE]
- https://jira.xwiki.org/browse/XWIKI-20135[WEB]